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O7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of O7

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ASTM O7

Catalog

O7 Profile
O7 Chemical composition
O7 Mechanical Properties
O7 Physical Properties
O7 Heat treatment
O7 Size Availability
O7 Relevant products

Profile

This page is mainly introduced the O7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of O7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
O7

Steel Garde:O7
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Alloy tool steel

Relevant products:

UNS NO7718 Coil/Strip/Sheet

UNS NO7718/ Inco...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
40CrMnMo7	DIN	Germany
35CrMnMo7	AFNOR	France
35CrMnMo7	AFNOR	France
GS-8MnMo74	DIN	Germany
GS-33NiCrMo7 4 4	DIN	Germany
18CrNiMo7-6	UNE	Spain
40CrMnMo7	UNE	Spain
EN 18CrN1Mo7-6	EN	Euronorm
EN 31CrAlMo7-10	EN	Euronorm
EN 41CrAlMo7	EN	Euronorm
EN 35CrMo7	EN	Euronorm
EN 20NiCrMo7F	EN	Euronorm
EN 100CrMnMo7	EN	Euronorm
EN 100CrMo7	EN	Euronorm
EN 41NiCrMo7-3-2	EN	Euronorm

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	842～190	σb/MPa
Yield Strength	418	σ 0.2 ≥/MPa
Elongation	70	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	513～991	-
HRC	30	-

Physical Properties

Thermal expansion	21-44	e-6/K
Thermal conductivity	10-60	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4193-5541	째C
Density	0364-3554	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
O7 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk